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Finding the Fourth Proportional to 539,651.18, 744,719.74 and 297,934.22

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Solution

The fourth proportional to 539,651.18, 744,719.74 and 297,934.22 is: 411,149.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,651.18 : 744,719.74 = 297,934.22 : x
  2. Step 2: Convert to fraction form
    539,651.18/744,719.74 = 297,934.22/x
  3. Step 3: Cross multiply
    539,651.18x = 744,719.74 × 297,934.22
  4. Step 4: Simplify right side
    539,651.18x = 221,877,495,972.47
  5. Step 5: Solve for x
    x = 221,877,495,972.47/539,651.18
  6. Step 6: Final answer
    x = 411,149.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.